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A compact structured light based otoscope for three dimensional imaging of the tympanic membrane

机译：紧凑的结构化的基于光的耳镜，用于鼓膜的三维成像

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摘要

Three dimensional (3D) imaging of the tympanic membrane (TM) has been carried out using a traditional otoscope equipped with a high-definition webcam, a portable projector and a telecentric optical system. The device allows us to project fringe patterns on the TM and the magnified image is processed using phase shifting algorithms to arrive at a 3D description of the TM. Obtaining a 3D image of the TM can aid in the diagnosis of ear infections such as otitis media with effusion, which is essentially fluid build-up in the middle ear. The high resolution of this device makes it possible examine a computer generated 3D profile for abnormalities in the shape of the eardrum. This adds an additional dimension to the image that can be obtained from a traditional otoscope by allowing visualization of the TM from different perspectives. In this paper, we present the design and construction of this device and details of the imaging processing for recovering the 3D profile of the subject under test. The design of the otoscope is similar to that of the traditional device making it ergonomically compatible and easy to adopt in clinical practice.
机译：使用配备高清网络摄像头，便携式投影仪和远心光学系统的传统耳镜对鼓膜（TM）进行了三维（3D）成像。该设备允许我们在TM上投影条纹图案，并使用相移算法处理放大的图像，以获取TM的3D描述。获取TM的3D图像可以帮助诊断耳部感染，例如渗出性中耳炎，这实际上是中耳积液。该设备的高分辨率使检查计算机生成的3D配置文件中的鼓膜形状异常成为可能。通过允许从不同角度可视化TM，这可以从传统耳镜获得的图像上增加了一个额外的维度。在本文中，我们介绍了该设备的设计和构造以及用于恢复被测对象的3D轮廓的成像处理的细节。耳镜的设计与传统设备相似，使其符合人体工程学并易于在临床实践中采用。

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  • 来源
    《Photonic therapeutics and diagnostics XI》|2015年|93031F.1-93031F.16|共16页
  • 会议地点 San Francisco CA(US)
  • 作者

    Anshuman J. Das; Julio C. Estrada; Zhifei Ge; Sara Dolcetti; Deborah Chen; Ramesh Raskar;

  • 作者单位

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA,Anshuman J. Das, MIT, Camera Culture, MIT Media Lab, 75 Amherst St., Cambridge, USA, 02139;

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA;

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA;

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA;

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA;

    MIT Media Lab, Massachusetts Institute of Technology, 75 Amherst St. Cambridge, MA 02139, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    optics; 3D imaging; tympanic membrane; structured light; otoscope;

    机译：光学; 3D成像；鼓膜;结构化光耳镜;

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